Happi Jack over extended
I need some real help, I over extended a 4150 happi jack and it will not power retact or turn manually. I have the jack off the camper now but need help to get it functional Anyone have this experi...
Forum Discussion
You have to watch your leg travel real close when you are raising it, as it turns out the be a real big headache. I got caught by doing all 4 jacks at the same time but did not realize one jac was in a depression and it was the one that over extended. The motor made a real loud clacking sound and that was it the leg was fully up and would not go down.
I played around with the other 3 till I got the pressure off the jammed leg. Then I was able to remove the leg from the TC and lucky I had copied KKELLER14K's writeup. I never took one apart before but that writeup was my savior but did not know for sure. When I tore it all down to the wormgear this is when I found the problem.
The motor had tighten the gear locking the two together like a lock nut.I knew from that post not to put presure on the top spindle as it may break at the hole where the pin came out. I had learned not to use vise grips on threads as they do not lock real tight and would probably slip and do more damage to gear. I used a pipe wrench that locked on gear and was able to break the lock nut effect on the worm gear. I then uses a fine fine to fix up the wrench mark on threads and cleaned it up so the were no filings. Then I lubed the gear as I had it all apart anyway and reassemble it. All worked great and saved me alot of money to get someone to do this and they probably would have told me I need a new leg.
This is a great site and many helpful people. You can get in alot of troble fast and it is nice to know help is not far off.
Again thanks to all.
I played around with the other 3 till I got the pressure off the jammed leg. Then I was able to remove the leg from the TC and lucky I had copied KKELLER14K's writeup. I never took one apart before but that writeup was my savior but did not know for sure. When I tore it all down to the wormgear this is when I found the problem.
The motor had tighten the gear locking the two together like a lock nut.I knew from that post not to put presure on the top spindle as it may break at the hole where the pin came out. I had learned not to use vise grips on threads as they do not lock real tight and would probably slip and do more damage to gear. I used a pipe wrench that locked on gear and was able to break the lock nut effect on the worm gear. I then uses a fine fine to fix up the wrench mark on threads and cleaned it up so the were no filings. Then I lubed the gear as I had it all apart anyway and reassemble it. All worked great and saved me alot of money to get someone to do this and they probably would have told me I need a new leg.
This is a great site and many helpful people. You can get in alot of troble fast and it is nice to know help is not far off.
Again thanks to all.
